Other Free Encyclopedias » Medicine Encyclopedia » Genetics in Medicine - Part 4

Speciation - Concepts Of Species, Speciation Mechanisms: Natural Selection And Genetic Drift, Isolating Mechanisms

organisms

Speciation is the process by which new species of organisms arise. Earth is inhabited by millions of different organisms, all of which likely arose from one early life-form that came into existence about 3.5 billion years ago. It is the task of taxonomists to decide which out of the multitude of different types of organisms should be considered species. The wide range in the characteristics of individuals within groups makes defining a species more difficult. Indeed, the definition of species itself is open to debate.

Statistical Geneticist [next] [back] Signal Transduction - Signals, Receptors, And Cascades, The Importance Of Phosphorylation And Dephosphorylation, Signal Transduction: The Rtk Pathway

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